TMUX(1)                    OpenBSD Reference Manual                    TMUX(1)

NAME
     tmux - terminal multiplexer

SYNOPSIS
     tmux [-28dqUuv] [-f file] [-L socket-name] [-S socket-path]
          [command [flags]]

DESCRIPTION
     tmux is a terminal multiplexer: it enables a number of terminals to be
     accessed and controlled from a single terminal.

     tmux runs as a server-client system.  A server is created automatically
     when necessary and holds a number of sessions, each of which may have a
     number of windows linked to it.  A window may be split on screen into one
     or more panes, each of which is a separate terminal.  Any number of
     clients may connect to a session, or the server may be controlled by is-
     suing commands with tmux.  Communication takes place through a socket, by
     default placed in /tmp.

     The options are as follows:

     -2            Force tmux to assume the terminal supports 256 colours.

     -8            Like -2, but indicates that the terminal supports 88
                   colours.

     -d            Force tmux to assume the terminal supports default colours.

     -f file       Specify an alternative configuration file.  By default,
                   tmux will look for a config file at ~/.tmux.conf.  The con-
                   figuration file is a set of tmux commands which are execut-
                   ed in sequence when the server is first started.

     -L socket-name
                   tmux stores the server socket in a directory under /tmp;
                   the default socket is named default.  This option allows a
                   different socket name to be specified, allowing several in-
                   dependent tmux servers to be run.  Unlike -S a full path is
                   not necessary: the sockets are all created in the same di-
                   rectory.

                   If the socket is accidentally removed, the SIGUSR1 signal
                   may be sent to the tmux server process to recreate it.

     -q            Prevent the server sending various informational messages,
                   for example when window flags are altered.

     -S socket-path
                   Specify a full alternative path to the server socket.  If
                   -S is specified, the default socket directory is not used
                   and any -L flag is ignored.

     -U            Unlock the server.

     -u            tmux attempts to guess if the terminal is likely to support
                   UTF-8 by checking the first of the LC_ALL, LC_CTYPE and
                   LANG environment variables to be set for the string
                   "UTF-8".  This is not always correct: the -u flag explicit-
                   ly informs tmux that UTF-8 is supported.

     -v            Request verbose logging.  This option may be specified mul-
                   tiple times for increasing verbosity.  Log messages will be
                   saved into tmux-client-PID.log and tmux-server-PID.log
                   files in the current directory, where PID is the PID of the
                   server or client process.

     command [flags]
                   This specifies one of a set of commands used to control
                   tmux, as described in the following sections.  If no com-
                   mand and flags are specified, the new-session command is
                   assumed.

QUICK START
     To create a new tmux session running vi(1):

           $ tmux new-session vi

     Most commands have a shorter form, known as an alias.  For new-session,
     this is new:

           $ tmux new vi

     Alternatively, the shortest unambiguous form of a command is accepted.
     If there are several options, they are listed:

           $ tmux n
           ambiguous command: n, could be: new-session, new-window, next-window

     Within an active session, a new window may be created by typing `C-b c'
     (Ctrl followed by the `b' key followed by the `c' key).

     Windows may be navigated with: `C-b 0' (to select window 0), `C-b 1' (to
     select window 1), and so on; `C-b n' to select the next window; and `C-b
     p' to select the previous window.

     A session may be detached using `C-b d' and reattached with:

           $ tmux attach-session

     Typing `C-b ?' lists the current key bindings in the current window; up
     and down may be used to navigate the list or `q' to exit from it.

     Commands to be run when the tmux server is started may be placed in the
     ~/.tmux.conf configuration file.  Common examples include:

     Changing the default prefix key:

           set-option -g prefix C-a
           unbind-key C-b
           bind-key C-a send-prefix

     Turning the status line off, or changing its colour:

           set-option -g status off
           set-option -g status-bg blue

     Setting other options, such as the default command, or locking after 30
     minutes of inactivity:

           set-option -g default-command "exec /bin/ksh"
           set-option -g lock-after-time 1800

     Creating new key bindings:

           bind-key b set-option status
           bind-key / command-prompt "split-window 'exec man %%'"

KEY BINDINGS
     tmux may be controlled from an attached client by using a key combination
     of a prefix key, `C-b' (Ctrl-b) by default, followed by a command key.

     Some of the default key bindings include:

        c       Create new window.
        d       Detach current client.
        l       Move to last (previously selected) window in the current ses-
                sion.
        n       Change to next window in the current session.
        p       Change to previous window in the current session.
        t       Display a large clock.
        ?       List current key bindings.

     A complete list may be obtained with the list-keys command (bound to `?'
     by default).  Key bindings may be changed with the bind-key and unbind-
     key commands.

HISTORY
     tmux maintains a configurable history buffer for each window.  By de-
     fault, up to 2000 lines are kept; this can be altered with the history-
     limit option (see the set-option command below).

MODES
     A tmux window may be in one of several modes.  The default permits direct
     access to the terminal attached to the window.  The others are:

     output mode
             This is entered when a command which produces output, such as
             list-keys, is executed from a key binding.

     scroll mode
             This is entered with the scroll-mode command (bound to `=' by de-
             fault) and permits the window history buffer to be inspected.

     copy mode
             This permits a section of a window or its history to be copied to
             a paste buffer for later insertion into another window.  This
             mode is entered with the copy-mode command, bound to `[' by de-
             fault.

     The keys available depend on whether emacs or vi mode is selected (see
     the mode-keys option).  The following keys are supported as appropriate
     for the mode:

           Function                vi          emacs
           Start of line           0 or ^      C-a
           Clear selection         Escape      C-g
           Copy selection          Enter       M-w
           Cursor down             j           Down
           End of line             $           C-e
           Cursor left             h           Left
           Next page               C-f         Page down
           Next word               w           M-f
           Previous page           C-u         Page up
           Previous word           b           M-b
           Quit mode               q           Escape
           Cursor right            l           Right
           Start selection         Space       C-Space
           Cursor up               k           Up
           Paste buffer            p           C-y

     The paste buffer key pastes the first line from the top paste buffer on
     the stack.

BUFFERS
     tmux maintains a stack of paste buffers for each session.  Up to the val-
     ue of the buffer-limit option are kept; when a new buffer is added, the
     buffer at the bottom of the stack is removed.  Buffers may be added using
     copy-mode or the set-buffer command, and pasted into a window using the
     paste-buffer command.

PANES AND LAYOUTS
     Each window displayed by tmux may be split into one or more panes; each
     pane takes up a certain area of the display and is a separate terminal.
     A window may be split into panes using the split-window command.

     Panes are numbered beginning from zero; in horizontal layouts zero is the
     leftmost pane and in vertical the topmost.

     Panes may be arranged using several layouts.  The layout may be cycled
     with the next-layout command (bound to `C-space' by default), the current
     pane may be changed with the up-pane and down-pane commands and the
     rotate-window and swap-pane commands may be used to swap panes without
     changing the window layout.

     The following layouts are supported:

     active-only
             Only the active pane is shown - all other panes are hidden.

     even-horizontal
             Panes are spread out evenly from left to right across the window.

     even-vertical
             Panes are spread evenly from top to bottom.

     main-horizontal
             A large (main) pane is shown at the top of the window and the re-
             maining panes are spread from left to right in the leftover space
             at the bottom.  Use the main-pane-height window option to specify
             the height of the top pane.

     main-vertical
             Similar to main-horizontal but the large pane is placed on the
             left and the others spread from top to bottom along the right.
             See the main-pane-width window option.

     manual  Manual layout splits windows vertically (running across); only
             with this layout may panes be resized using the resize-pane com-
             mand.

STATUS LINE
     tmux includes an optional status line which is displayed in the bottom
     line of each terminal.  By default, the status line is enabled (it may be
     disabled with the status session option) and contains, from left-to-
     right: the name of the current session in square brackets; the window
     list; the current window title in double quotes; and the time and date.

     The status line is made of three parts: configurable left and right sec-
     tions (which may contain dynamic content such as the time or output from
     a shell command, see the status-left, status-left-length, status-right,
     and status-right-length options below), and a central window list.  The
     window list shows the index, name and (if any) flag of the windows pre-
     sent in the current session in ascending numerical order.  The flag is
     one of the following symbols appended to the window name:

           Symbol    Meaning
           *         Denotes the current window.
           -         Marks the last window (previously selected).
           #         Window is monitored and activity has been detected.
           !         A bell has occurred in the window.
           +         Window is monitored for content and it has appeared.

     The # symbol relates to the monitor-activity and + to the monitor-content
     window options.  The window name is printed in inverted colours if an
     alert (bell, activity or content) is present.

     The colour and attributes of the status line may be configured, the en-
     tire status line using the status-attr, status-fg and status-bg session
     options and individual windows using the window-status-attr, window-
     status-fg and window-status-bg window options.

     The status line is automatically refreshed at interval if it has changed,
     the interval may be controlled with the status-interval session option.

COMMANDS
     This section contains a list of the commands supported by tmux.  Most
     commands accept the optional -t argument with one of target-client,
     target-session or target-window.  These specify the client, session or
     window which a command should affect.  target-client is the name of the
     pty(4) file to which the client is connected, for example /dev/ttyp1.
     Clients may be listed with the list-clients command.

     target-session is either the name of a session (as listed by the list-
     sessions command) or the name of a client, target-client, in which case
     the session attached to the client is used.  An fnmatch(3) pattern may be
     used to match the session name.  If a session is omitted when required,
     tmux attempts to use the current session; if no current session is avail-
     able, the most recently created is chosen.  If no client is specified,
     the current client is chosen, if possible, or an error is reported.

     target-window specifies a window in the form session:index, for example
     mysession:1.  The session is in the same form as for target-session.
     session, index or both may be omitted.  If session is omitted, the same
     rules as for target-session are followed; if index is not present, the
     current window for the given session is used.  When the argument does not
     contain a colon, tmux first attempts to parse it as window index; if that
     fails, an attempt is made to match a session or client name.

     Multiple commands may be specified together as part of a command
     sequence.  Each command should be separated by spaces and a semicolon;
     commands are executed sequentially from left to right.  A literal semi-
     colon may be included by escaping it with a backslash (for example, when
     specifying a command sequence to bind-key).

     Examples include:

           refresh-client -t/dev/ttyp2

           rename-session -tfirst newname

           set-window-option -t:0 monitor-activity on

           new-window ; split-window -d

           bind-key D detach-client \; lock-server

     The following commands are available:

     attach-session [-d] [-t target-session]
                   (alias: attach)
             Create a new client in the current terminal and attach it to a
             session.  If -d is specified, any other clients attached to the
             session are detached.

             If no server is started, attach-session will attempt to start it;
             this will fail unless sessions are created in the configuration
             file.

     bind-key [-r] key command [arguments]
                   (alias: bind)
             Bind key key to command.  Keys may be specified prefixed with
             `C-' or `^' for Ctrl keys, or `M-' for Alt (meta) keys.  The -r
             flag indicates this key may repeat, see the repeat-time option.

     break-pane [-d] [-p pane-index] [-t target-window]
                   (alias: breakp)
             Break the current pane off from its containing window to make it
             the only pane in a new window.  If -d is given, the new window
             does not become the current window.

     choose-session [-t target-window]
             Put a window into session choice mode, where the session for the
             current client may be selected interactively from a list.  This
             command works only from inside tmux.

     choose-window [-t target-window]
             Put a window into window choice mode, where the window for the
             session attached to the current client may be selected interac-
             tively from a list.  This command works only from inside tmux.

     clear-history [-p pane-index] [-t target-window]
                   (alias: clearhist)
             Remove and free the history for the specified pane.

     clock-mode [-t target-window]
             Display a large clock.

     command-prompt [-t target-client] [template]
             Open the command prompt in a client.  This may be used from in-
             side tmux to execute commands interactively.  If template is
             specified, it is used as the command; any %% in the template will
             be replaced by what is entered at the prompt.

     confirm-before [-t target-client] command
                   (alias: confirm)
             Ask for confirmation before executing command.  This command
             works only from inside tmux.

     copy-buffer [-a src-index] [-b dst-index] [-s src-session] [-t
             dst-session]
                   (alias: copyb)
             Copy a session paste buffer to another session.  If no sessions
             are specified, the current one is used instead.

     copy-mode [-u] [-t target-window]
             Enter copy mode.  The -u option scrolls one page up.

     delete-buffer [-b buffer-index] [-t target-session]
                   (alias: deleteb)
             Delete the buffer at buffer-index, or the top buffer if not spec-
             ified.

     detach-client [-t target-client]
                   (alias: detach)
             Detach the current client if bound to a key, or the specified
             client with -t.

     down-pane [-p pane-index] [-t target-window]
                   (alias: downp)
             Move down a pane.

     find-window [-t target-window] match-string
                   (alias: findw)
             Search for the fnmatch(3) pattern match-string in window names,
             titles, and visible content (but not history).  If only one win-
             dow is matched, it'll be automatically selected, otherwise a
             choice list is shown.  This command only works from inside tmux.

     has-session [-t target-session]
                   (alias: has)
             Report an error and exit with 1 if the specified session does not
             exist.  If it does exist, exit with 0.

     kill-pane [-p pane-index] [-t target-window]
                   (alias: killp)
             Destroy the given pane.

     kill-server
             Kill the tmux server and clients and destroy all sessions.

     kill-session [-t target-session]
             Destroy the given session, closing any windows linked to it and
             no other sessions, and detaching all clients attached to it.

     kill-window [-t target-window]
                   (alias: killw)
             Kill the current window or the window at target-window, removing
             it from any sessions to which it is linked.

     last-window [-t target-session]
                   (alias: last)
             Select the last (previously selected) window.  If no target-
             session is specified, select the last window of the current ses-
             sion.

     link-window [-dk] [-s src-window] [-t dst-window]
                   (alias: linkw)
             Link the window at src-window to the specified dst-window.  If
             dst-window is specified and no such window exists, the src-window
             is linked there.  If -k is given and dst-window exists, it is
             killed, otherwise an error is generated.  If -d is given, the
             newly linked window is not selected.

     list-buffers [-t target-session]
                   (alias: lsb)
             List the buffers in the given session.

     list-clients
                   (alias: lsc)
             List all clients attached to the server.

     list-commands
                   (alias: lscm)
             List the syntax of all commands supported by tmux.

     list-keys
                   (alias: lsk)
             List all key bindings.

     list-sessions
                   (alias: ls)
             List all sessions managed by the server.

     list-windows [-t target-session]
                   (alias: lsw)
             List windows in the current session or in target-session.

     load-buffer [-b buffer-index] [-t target-session] path
                   (alias: loadb)
             Load the contents of the specified paste buffer from path.

     lock-server
                   (alias: lock)
             Lock the server until a password is entered.

     move-window [-d] [-s src-window] [-t dst-window]
                   (alias: movew)
             This is similar to link-window, except the window at src-window
             is moved to dst-window.

     new-session [-d] [-n window-name] [-s session-name] [command]
                   (alias: new)
             Create a new session with name session-name.  The new session is
             attached to the current terminal unless -d is given.  window-name
             and command are the name of and command to execute in the initial
             window.

     new-window [-d] [-n window-name] [-t target-window] [command]
                   (alias: neww)
             Create a new window.  If -d is given, the session does not make
             the new window the current window.  target-window represents the
             window to be created.  command is the command to execute.  If
             command is not specified, the default command is used.

             The TERM environment variable must be set to ``screen'' for all
             programs running inside tmux.  New windows will automatically
             have ``TERM=screen'' added to their environment, but care must be
             taken not to reset this in shell start-up files.

     next-layout [-t target-window]
                   (alias: nextl)
             Move a window to the next layout and rearrange the panes to fit.

     next-window [-a] [-t target-session]
                   (alias: next)
             Move to the next window in the session.  If -a is used, move to
             the next window with a bell, activity or content alert.

     paste-buffer [-d] [-b buffer-index] [-t target-window]
                   (alias: pasteb)
             Insert the contents of a paste buffer into the current window.

     previous-window [-a] [-t target-session]
                   (alias: prev)
             Move to the previous window in the session.  With -a, move to the
             previous window with a bell, activity or content alert.

     refresh-client [-t target-client]
                   (alias: refresh)
             Refresh the current client if bound to a key, or a single client
             if one is given with -t.

     rename-session [-t target-session] new-name
                   (alias: rename)
             Rename the session to new-name.

     rename-window [-t target-window] new-name
                   (alias: renamew)
             Rename the current window, or the window at target-window if
             specified, to new-name.

     resize-pane [-DU] [-p pane-index] [-t target-window] [adjustment]
                   (alias: resizep)
             Resize a pane, upward with -U (the default) or downward with -D.
             The adjustment is given in lines (the default is 1).

     respawn-window [-k] [-t target-window] [command]
                   (alias: respawnw)
             Reactive a window in which the command has exited (see the
             remain-on-exit window option).  If command is not given, the com-
             mand used when the window was created is executed.  The window
             must be already inactive, unless -k is given, in which case any
             existing command is killed.

     rotate-window [-DU] [-t target-window]
                   (alias: rotatew)
             Rotate the positions of the panes within a window, either upward
             (numerically lower) with -U or downward (numerically higher).

     save-buffer [-a] [-b buffer-index] [-t target-session] path
                   (alias: saveb)
             Save the contents of the specified paste buffer to path.  The -a
             option appends to rather than overwriting the file.

     scroll-mode [-u] [-t target-window]
             Enter scroll mode.  The -u has the same meaning as in the copy-
             mode command.

     select-layout [-t target-window] layout-name
                   (alias: selectl)
             Choose a specific layout for a window.

     select-pane [-p pane-index] [-t target-window]
                   (alias: selectp)
             Make pane pane-index the active pane in window target-window.

     select-prompt [-t target-client]
             Open a prompt inside target-client allowing a window index to be
             entered interactively.

     select-window [-t target-window]
                   (alias: selectw)
             Select the window at target-window.

     send-keys [-t target-window] key ...
                   (alias: send)
             Send a key or keys to a window.  Each argument key is the name of
             the key (such as `C-a' or `npage' ) to send; if the string is not
             recognised as a key, it is sent as a series of characters.  All
             arguments are sent sequentially from first to last.

     send-prefix [-t target-window]
             Send the prefix key to a window as if it was pressed.

     server-info
                   (alias: info)
             Show server information and terminal details.

     set-buffer [-b buffer-index] [-t target-session] data
                   (alias: setb)
             Set the contents of the specified buffer to data.

     set-option [-gu] [-t target-session] option value
                   (alias: set)
             Set an option.  If -g is specified, the option is set as a global
             option.  Global options apply to all sessions which don't have
             the option explicitly set.  If -g is not used, the option applies
             only to target-session.  The -u flag unsets an option, so a ses-
             sion inherits the option from the global options - it is not pos-
             sible to unset a global option.

             Possible options are:

             bell-action [any | none | current]
                     Set action on window bell.  any means a bell in any win-
                     dow linked to a session causes a bell in the current win-
                     dow of that session, none means all bells are ignored and
                     current means only bell in windows other than the current
                     window are ignored.

             buffer-limit number
                     Set the number of buffers kept for each session; as new
                     buffers are added to the top of the stack, old ones are
                     removed from the bottom if necessary to maintain this
                     maximum length.

             default-command command
                     Set the command used for new windows (if not specified
                     when the window is created) to command.  The default is
                     ``exec $SHELL -l''.

             default-path path
                     Set the default working directory for processes created
                     from keys, or interactively from the prompt.  The default
                     is the current working directory when the server is
                     started.

             history-limit lines
                     Set the maximum number of lines held in window history.
                     This setting applies only to new windows - existing win-
                     dow histories are not resized and retain the limit at the
                     point they were created.

             lock-after-time number
                     Lock the server after number seconds of inactivity.  The
                     default is off (set to 0).  This has no effect as a ses-
                     sion option; it must be set as a global option using -g.

             message-attr attributes
                     Set status line message attributes, where attributes is
                     either default or a comma-delimited list of one or more
                     of: bright (or bold), dim, underscore, blink, reverse,
                     hidden, or italics.

             message-bg colour
                     Set status line message background colour, where colour
                     is one of: black, red, green, yellow, blue, magenta,
                     cyan, white or default.

             message-fg colour
                     Set status line message foreground colour.

             prefix key
                     Set the current prefix key.

             repeat-time number
                     Allow multiple commands to be entered without pressing
                     the prefix-key again in the specified number milliseconds
                     (the default is 500).  Whether a key repeats may be set
                     when it is bound using the -r flag to bind-key.  Repeat
                     is enabled for the default keys of the up-pane, down-
                     pane, resize-pane-up, and resize-pane-down commands.

             set-remain-on-exit [on | off]
                     Set the remain-on-exit window option for any windows
                     first created in this session.

             set-titles [on | off]
                     Attempt to set the window title using the \e]2;...\007
                     xterm code and the terminal appears to be an xterm.  This
                     option is off by default.  Note that elinks will only at-
                     tempt to set the window title if the STY environment
                     variable is set.

             status [on | off]
                     Show or hide the status line.

             status-attr attributes
                     Set status line attributes.

             status-bg colour
                     Set status line background colour.

             status-fg colour
                     Set status line foreground colour.

             status-interval interval
                     Update the status bar every interval seconds.  By de-
                     fault, updates will occur every 15 seconds.  A setting of
                     zero disables redrawing at interval.

             status-keys [vi | emacs]
                     Use vi or emacs-style key bindings in the status line,
                     for example at the command prompt.  Defaults to emacs.

             status-left string
                     Display string to the left of the status bar.  string
                     will be passed through strftime(3) before being used.  By
                     default, the session name is shown.  string may contain
                     any of the following special character pairs:

                           Character pair    Replaced with
                           #(command)        First line of command's output
                           #H                Hostname of local host
                           #S                Session name
                           #T                Current window title
                           ##                A literal `#'

                     Where appropriate, these may be prefixed with a number to
                     specify the maximum length, for example `#24T'.

                     By default, UTF-8 in string is not interpreted, to enable
                     UTF-8, use the status-utf8 option.

             status-left-length length
                     Set the maximum length of the left component of the sta-
                     tus bar.  The default is 10.

             status-right string
                     Display string to the right of the status bar.  By de-
                     fault, the date and time will be shown.  As with status-
                     left, string will be passed to strftime(3), character
                     pairs are replaced, and UTF-8 is dependent on the status-
                     utf8 option.

             status-right-length length
                     Set the maximum length of the right component of the sta-
                     tus bar.  The default is 40.

             status-utf8 [on | off]
                     Instruct tmux to treat top-bit-set characters in the
                     status-left and status-right strings as UTF-8; notably,
                     this is important for wide characters.  This option de-
                     faults to off.

     set-password [-c] password
                   (alias: pass)
             Set the server password.  If the -c option is given, a pre-en-
             crypted password may be specified.  By default, the password is
             blank, thus any entered password will be accepted when unlocking
             the server (see the lock-server command).  To prevent variable
             expansion when an encrypted password is read from a configuration
             file, enclose it in single quotes (').

     set-window-option [-gu] [-t target-window] option value
                   (alias: setw)
             Set a window-specific option.  The -g and -u flags work similarly
             to the set-option command.

             Supported options are:

             aggressive-resize [on | off]
                     Aggressively resize the chosen window.  This means that
                     tmux will resize the window to the size of the smallest
                     session for which it is the current window, rather than
                     the smallest session to which it is attached.  The window
                     may resize when the current window is changed on another
                     sessions; this option is good for full-screen programs
                     which support SIGWINCH and poor for interactive programs
                     such as shells.

             automatic-rename [on | off]
                     Control automatic window renaming.  When this setting is
                     enabled, tmux will attempt - on supported platforms - to
                     rename the window to reflect the command currently run-
                     ning in it.  This flag is automatically disabled for an
                     individual window when a name is specified at creation
                     with new-window or new-session, or later with rename-
                     window.  It may be switched off globally with:

                           set-window-option -g automatic-rename off

             clock-mode-colour colour
                     Set clock colour.

             clock-mode-style [12 | 24]
                     Set clock hour format.

             force-height height

             force-width width
                     Prevent tmux from resizing a window to greater than width
                     or height.  A value of zero restores the default unlimit-
                     ed setting.

             main-pane-width width

             main-pane-height height
                     Set the width or height of the main (left or top) pane in
                     the main-horizontal or main-vertical layouts.

             mode-attr attributes
                     Set window modes attributes.

             mode-bg colour
                     Set window modes background colour.

             mode-fg colour
                     Set window modes foreground colour.

             mode-keys [vi | emacs]
                     Use vi or emacs-style key bindings in scroll and copy
                     modes.  Key bindings default to emacs.

             monitor-activity [on | off]
                     Monitor for activity in the window.  Windows with activi-
                     ty are highlighted in the status line.

             monitor-content match-string
                     Monitor content in the window.  When fnmatch(3) pattern
                     match-string appears in the window, it is highlighted in
                     the status line.

             remain-on-exit [on | off]
                     A window with this flag set is not destroyed when the
                     program running in it exits.  The window may be reacti-
                     vated with the respawn-window command.

             utf8 [on | off]
                     Instructs tmux to expect UTF-8 sequences to appear in
                     this window.

             window-status-attr attributes
                     Set status line attributes for a single window.

             window-status-bg colour
                     Set status line background colour for a single window.

             window-status-fg colour
                     Set status line foreground colour for a single window.

             xterm-keys [on | off]
                     If this option is set, tmux will generate xterm(1)-style
                     function key sequences; these have a number included to
                     indicate modifiers such as Shift, Alt or Ctrl.

     show-buffer [-b buffer-index] [-t target-session]
                   (alias: showb)
             Display the contents of the specified buffer.

     show-options [-t target-session] option value
                   (alias: show)
             Show the currently set options.  If a target-session is speci-
             fied, the options for that session are shown; otherwise, the
             global options are listed.

     show-window-options [-t target-window] option value
                   (alias: showw)
             List the current options for the given window.

     source-file path
                   (alias: source)
             Execute commands from path.

     split-window [-d] [-l lines | -p percentage] [-t target-window] [command]
                   (alias: splitw)
             Creates a new window by splitting it vertically.  The -l and -p
             options specify the size of the new window in lines, or as a per-
             centage, respectively.  All other options have the same meaning
             as in the new-window command.

             A few notes with regard to panes:
             1.   If attempting to split a window with less than eight lines,
                  an error will be shown.
             2.   If the window is resized, as many panes are shown as can fit
                  without reducing them below four lines.
             3.   The minimum pane size is four lines (including the separator
                  line).
             4.   The panes are indexed from top (0) to bottom, with no num-
                  bers skipped.

     start-server
                   (alias: start)
             Start the tmux server, if not already running, without creating
             any sessions.

     suspend-client [-c -target-client]
                   (alias: suspendc)
             Suspend a client by sending SIGTSTP (tty stop).

     swap-pane [-dDU] [-p src-index] [-t target-window] [-q dst-index]
                   (alias: swapp)
             Swap two panes within a window.  If -U is used, the pane is
             swapped with the pane above (before it numerically); -D swaps
             with the pane below (the next numerically); or dst-index may be
             give to swap with a specific pane.

     swap-window [-d] [-s src-window] [-t dst-window]
                   (alias: swapw)
             This is similar to link-window, except the source and destination
             windows are swapped.  It is an error if no window exists at src-
             window.

     switch-client [-c target-client -t target-session]
                   (alias: switchc)
             Switch the current session for client target-client to target-
             session.

     unbind-key key
                   (alias: unbind)
             Unbind the key bound to key.

     unlink-window [-t target-window]
                   (alias: unlinkw)
             Unlink target-window.  A window may be unlinked only if it is
             linked to multiple sessions - windows may not be linked to no
             sessions.

     up-pane [-p pane-index] [-t target-window]
                   (alias: upp)
             Move up a pane.

FILES
     ~/.tmux.conf     Default tmux configuration file.

SEE ALSO
     pty(4)

AUTHORS
     Nicholas Marriott <nicm@users.sourceforge.net>

OpenBSD 4.6                      June 26, 2009                              14
